select distinct substring(name,1,1) from stamps ,printsize_master,np_master where np_master.np_code=stamps.np_code and np_master.np='R' and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='2.98 x 2.5' and year(stamps.issue_date)=1990 and stamps.serial_no='1431' order by substring(name,1,1)
IndianPost
Currency >> R >> Print Size >> 2.98 x 2.5 >> Issue Date >> year >> 1990 >> Serial Number >> 1431 >> Alpha >> K >>